Name: H929049B0500 Foxboro ACP Controller CPU Module, I/A Series Hot-Standby Redundant Processor for ACP40 / ACP50 Chassis - MASSIVE
Brand: FOXBORO

Description

H929049B0500 Foxboro ACP Controller CPU Module, I/A Series Hot-Standby Redundant Processor for ACP40 / ACP50 Chassis

Product Application

H929049B0500 belongs to Foxboro I/A Series DCS platform (Schneider Electric / legacy Invensys). It is the core CPU processor for ACP40 and ACP50 controller chassis. It runs PID closed-loop regulation, sequence control, logic interlock and safety protection programs. It supports primary/standby hot standby redundancy; standby CPU synchronizes real-time data & control logic continuously. When main CPU fails, bumpless automatic switchover occurs within 100ms without process interruption. Communicates with FBM I/O modules via redundant IABus backplane bus, exchanges real-time data with H90 series workstations through 10/100Mbps Ethernet. Widely used in petrochemical, refinery, chemical plant, thermal power and oil & gas process control.

H929049B0500

Product Specifications

Part Number: H929049B0500
Manufacturer: Foxboro (Schneider Electric)
Product Type: ACP Controller CPU Module
Applicable Chassis: ACP40 / ACP50
Processor: 32-bit RISC CPU with FPU floating-point arithmetic unit
Memory: Program memory + data memory, on-board non-volatile memory for logic retention
Backplane Bus: Dual redundant IABus high-speed peer-to-peer backplane bus
Network Interface: 1 × 10/100 Mbps Ethernet port for I/A control network
Redundancy Mode: Hot standby, bumpless automatic failover ＜100ms
Programming Standard: IEC 61131-3, configured by Foxboro IA-Tools engineering software
Power Supply: Powered by ACP chassis backplane 24 VDC
Operating Temperature: 0 ℃ ~ +55 ℃
Storage Temperature: -40 ℃ ~ +85 ℃
EMC Compliance: IEC 61000-6-2 / IEC 61000-6-4
Certification: CE, UL, CSA, FM, RoHS
Product Status: Spare replacement CPU for legacy I/A ACP controller projects
Approx. Weight: 0.8 kg

Core Technical Parameters

Control capacity: Supports up to 12 FBM field I/O modules within the same ACP chassis
Real-time synchronization: Continuous logic and process value synchronization between primary & standby CPU
Comprehensive self-diagnosis: Hardware fault detection for CPU core, memory, backplane bus and Ethernet communication
Electrical isolation between internal logic and IABus backplane
Hot-swappable design: Online module replacement without shutting down the whole ACP chassis
Fast control cycle for continuous PID regulation and safety interlock logic

Recommended Matching Spare Parts & Accessories (8 Items)

ACP50 / ACP40 controller chassis and backplane
Redundant 24VDC power supply module for ACP chassis
FBM series analog / digital I/O modules (FBM201, FBM233, FBM247 etc.)
I/A Series control network industrial Ethernet switch (A4 series P0973LN / P0973JN)
IA-Tools engineering configuration software license
Shielded Ethernet cable for controller-workstation communication
IABus termination resistor connector
UPS power supply for DCS controller cabinet

H929049B0500

Product Features

✅ Hot-Standby Redundant CPU Architecture Primary and standby CPU run synchronously. Automatic bumpless switchover within 100ms once main CPU fault occurs, no disruption to running process control loops.

✅ 32-bit RISC with FPU Floating-Point Unit High-speed floating-point calculation for complex PID, advanced control and safety interlock logic.

✅ Dual Redundant IABus Backplane Bus Dual high-speed backplane bus connecting FBM I/O modules, eliminates single bus point of failure.

✅ IEC 61131-3 Standard Programming Supports multiple programming languages, flexible development of continuous control, sequence and interlock logic.

✅ Hot-Swap Module Maintenance Faulty CPU module can be extracted and replaced online without powering down ACP chassis.

✅ Built-in Full Hardware Self-Diagnosis Continuously monitors CPU, memory, bus and network health, sends fault alarm to DCS HMI workstation.

✅ Native I/A DCS Compatibility Seamless communication with FBM I/O modules and H90 operator/engineering workstations.

Installation Guidelines

Insert H929049B0500 CPU module into designated CPU slot of ACP40 / ACP50 chassis, lock front fastening handle.
For redundant configuration, install a second identical CPU into paired standby CPU slot.
Connect Ethernet cable to CPU RJ45 port and link to A4 series DCS control network switch.
Download IEC 61131-3 control project and logic configuration to primary CPU via IA-Tools.
Activate redundancy synchronization and verify primary/standby data synchronization status.
Assign controller node address on I/A control network.
Perform redundancy test: cut power to primary CPU, verify standby takes over control bumplessly.
Check CPU running, communication and fault LED indicators after commissioning.

Maintenance Instructions

Daily Maintenance Check CPU status LED indicators on ACP chassis. Monitor primary-standby synchronization status from DCS HMI. Watch for controller communication alarms.

Periodic Maintenance (Every 6–12 months) Clean dust of chassis air filter. Check CPU locking handle tightness. Backup controller logic project archive. Inspect Ethernet cable connection condition.

Fault Maintenance

CPU fault LED alarm: Replace faulty hot-swap CPU module, wait for redundancy synchronization recovery.
FBM I/O communication loss: Check IABus backplane connection and FBM module health status.
Redundancy sync failure: Ensure identical project configuration downloaded to both primary and standby CPU.
Avoid removing CPU module while critical process is running unless standby CPU is confirmed healthy.

Long-Term Operation Tips Keep cabinet temperature within 0~55℃. Maintain spare identical CPU module for emergency replacement. Archive version backup of control logic.